Let me chime in...I have an '04 with 196,500 miles, 2 months ago, a chime went off, the red triangle came on and in the MFD the word PROBLEM appeared, then both triangle and problem disappeared. I wrote about it here, and someone said check the oil...empty. It had been 12,000 miles since I had changed it, I forgot and ignore the maintenance lite, I have always used the best synthetic, and up til this time change oil at 5K sometimes 7K. The mechanic said I probably had about 1 to 1 1/2 quarts still in the case...it's still running, but they said "you're burning oil". It's now 3K since last oil change, down a quart or less, of course I will now change oil at 5K, would any of the ring freeing items mentioned above be advised? or??